Please explain your answer thanks

Please Explain Your Answer Thanks

Answers

Answer 1
Melissa is represented by variable m.
Josh is represented by variable j.
Chau is represented by variable c.

m+j+c= 148
c=4m
j=m+10

Substitute for c and j for the first equation.
m+(m+10)+4m=148
6m+10=148
6m=138
m=23

Plug the known m value in
j=23+10
j=33

c=4(23)
c=92

Final answer: Melissa=23 messages, Josh=33 messages, Chau=92 messages

Related Questions

Two angles of an isosceles triangle measure 70° and x°. What is the sum of three possible values of x? A. 95 B. 125 C. 140 D. 165 E. 180

Answers

The sum of three possible values of x° in the isosceles triangle is 180°. The angles are 40°, 70°, and 70°. The correct answer is E. 180.

In an isosceles triangle, two angles are congruent (equal). So, if one angle is 70°, the other angle must also be 70°.

Let's denote the third angle as y°.

Since the sum of the angles in any triangle is 180°, we can write the equation:

70° + 70° + y° = 180°

Solving for y:

2 × 70° + y° = 180°

y° = 180° - 140°

y° = 40°

So, the three possible values of x° are 40°, 70°, and 70°.

Now, let's find the sum of these three possible values:

Sum = 40° + 70° + 70°

Sum = 180°

Therefore, the sum of three possible values of x° is 180°. The correct answer is E. 180.

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What is the answer to 3n-5=7n+11 with work shown

Answers

3n-7n=-4n
11+5=16

-4n=16
(-4n=16)/-4=n=-4

n=-4
Our original equation: 3n - 5 = 7n + 11
First, we need to add the 5 to both sides to get 3n = 7n + 16. Then, we subtract 7n from both sides to get -4n = 16. Finally, we divide both sides by -4 to get n = -4. Hope this helps and have a nice day!

How to order decimals from least to greatest with different decimals places?

Answers

The waay you do that is when you have the lowest number which is not the closest to a whole or one then you put them that way from their on. 

A translation of directed line segment from the origin to (0,-3) followed by a reflection around the line y=x

Answers

Final answer:

To translate a directed line segment from the origin to (0,-3), simply subtract 3 from the y-coordinate. To reflect a point across the line y=x, swap the x and y coordinates. The reflected point of (0,-3) would be (-3,0).

Explanation:

To translate a directed line segment from the origin to (0,-3), we can simply subtract 3 from the y-coordinate. The new coordinate would be (0,-3).

To reflect a point across the line y=x, we swap the x and y coordinates. So the reflected point of (0,-3) would be (-3,0).

simplify ( 1/2A + 1/2B )^2

Answers

Notice that both A and B are multiplied by (1/2).

Thus, the given expression can be re-written as [(1/2)(A+B)]^2.

Square the (1/2) and the (A+B) separately, and then multiply together the resulting squares:

(1/4)(A^2 + 2AB + B^2)

a^2     ab     b^2
___+  ___+ ___
  4        2       4

this is your answer

ROUND 4,719,429 TO THE NEAREST 10,000

Answers

4,720,000.  Good luck.
4,720,000
round up if 5 or over, round down if 4 or under

At the movie theatre, child admission is $5.10 and adult admission is $9.00 . On Monday, 163 tickets were sold for a total sales of $1088.70 . How many adult tickets were sold that day?

Answers

a = adult tickets

c = child

c + a = 163 tickets total

rewrite as c = 163-a

5.10c + 9.00a = 1088.70

5.10(163-a) + 9.00a = 1088.70

831.30-5.10a + 9.00a = 1088.70

831.30 +3.9a = 1088.70

3.9a = 1088.70-831.30

3.9a  = 257.40

a = 257.40 / 3.9 = 66

 66 adult tickets were sold

Which should be the first step in solving the equation 1.2 w -3.8= 12.4

1. Add 3.8 to both sides of the equation.
2. Subtract 1.2 from both sides of the equation.
3. Multiply both sides of the equation by 1.2.
4. Divide both sides of the equation by 3.8.

Answers

add 3.8 to both sides of the equation

Answer:

Option 1 - Add 3.8 to both sides of the equation.            

Step-by-step explanation:

Given : Equation  [tex]1.2w-3.8=12.4[/tex]

To find : Which should be the first step in solving the equation?

Solution :

Equation  [tex]1.2w-3.8=12.4[/tex]

Step 1 - Adding 3.8 both side,

[tex]1.2w-3.8+3.8=12.4+3.8[/tex]

[tex]1.2w= 16.2[/tex]

Step 2 - Divide 1.2 both side,

[tex]\frac{1.2w}{1.2}=\frac{16.2}{1.2}[/tex]

[tex]w=13.5[/tex]

Therefore, The first step in solving the equation is 'Add 3.8 to both sides of the equation.'

So, Option 1 is correct.

Sand dollars are animals that live buried in the sand of shallow coastal waters. The thin circular body of a sand dollar is usually 2 to 4 inches wide. Find the area of a sand dollar that is 3 inches wide.

Answers

Area = πr^2

The diameter is twice the area.

The diameter is the width of a circle.

This means the radius is (3/2).

A = π(3/2)^2

A = π(9/4)

A = 9π/4

A = 7.0685834706

A = 7.07

Answer:

The area of a sand dollar that is 3 inches wide is [tex]7.0686 inch^2[/tex]

Step-by-step explanation:

Width of sand dollar's circular body  = d = 3 inches

Radius of the  sand dollar's circular body  = r

[tex]r=\frac{d}{2} = \frac{3 inch}{2}=1.5 inches[/tex]

Area of circle = [tex]\pi r^2[/tex]

So, the area of a sand dollar that is 3 inches wide:

[tex]A=3.14\times (1.5 inch)^2=7.0686 inch^2[/tex]

The area of a sand dollar that is 3 inches wide is [tex]7.0686 inch^2[/tex]

What is the area of the rectangle?



60 units²

66 units²

70 units²

74 units²

Answers

the area of the rectangle is 7r units according to my estimated guess

What is a correct congruence statement for the triangles shown?

Suppose △AYH≅△ZRL.

What is the corresponding congruent part for each segment or angle?

ZR¯¯¯¯¯
RL¯¯¯¯¯
∠L
∠Z



ah_____ yh___ ay__

Answers

ZR=AY, RL=YH, L equals H, Z equals A , ah =zl,


The graph of f(x) = 2^x + 1 is shown below. Explain how to find the average rate of change between x = 0 and x = 3.

Answers

When you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. f(x) = x2 and f(x + h) = (x + h)2 Therefore, the slope of the secant line between any two points on this function is 2x + h
Average rate of change is a ratio of change on Y-axis to change on X-axis ([tex]\frac{change \ in \ Y}{change \ in \ X} \Rightarrow[/tex] [tex]\frac{f(3)-f(0)}{3-0}=\frac{7-1}{3}=2[/tex].

whats the bisector of an obtuse angle forms

acute angles
right angles
obtuse angles
straight angles


Answers

the bisector of and obtuse angle forms acute angles

Answer:

A.Acute angle

Step-by-step explanation:

We are given that an obtuse angle

We have to find that which type of angle of bisector of an obtuse angle.

Bisector of an obtuse angle means it is divided into two equal parts.

Obtuse angle is that angle whose measurement is greater than 90 degrees and less than 180 degrees.

Suppose, we have an obtuse angle =100 degrees

After bisection , it divides into two equal parts

Let x and x are two equal parts of given obtuse  angle

[tex]x+x=100[/tex]

[tex]2x=100[/tex]

[tex]x=\frac{100}{2}=50[/tex]

Each angle measurement=50 degrees < 90 degrees

The angle which is less than 90 degrees and greater than zero degrees  is called acute angle.

Hence, the bisector of an obtuse  angle forms acute angles.

Answer:A.Acute angle

Solve for x. x−14=38 Enter your simplified answer in the box.

Answers

x - 14 = 38
x - 14 + 14 = 38 + 14
x = 52

Answer:

52

Step-by-step explanation:

Jacob held different part-time jobs during his summer holiday. The table below shows the total money he earned for different amounts of time, in hours: Hours Worked 1 2 3 4 5 6 7 8 9 Money Earned (dollars) 4 8 12 16 20 24 28 32 36 What type of association will the scatter plot for this data represent between the number of hours worked and the total money earned?

Answers

The number of hours and the amount of money increases at an even rate, 4 dollars for each hour, so the graph is a line, y=4x, positive correlation

The type of association scatter plot for this data represents the number of hours worked and the total money earned is a positive correlation.

How to find the type of association that represent the data?

The number of hours and the amount of money increases at an even rate, 4 dollars for each hour.

The given table;

Hours Worked                 1   2  3   4   5   6   7   8   9  

Money Earned (dollars)   4  8  12 16  20 24 28 32 36

We can see here as the number of hours increases the amount of money is increasing, so it indicates that there is a positive association.

Also, there is an unequal change in equal intervals of time, so it represents a  positive nonlinear association.

Hence, the graph is a line, y=4x,

The type of association scatter plot for this data represents the number of hours worked and the total money earned is a positive correlation.

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Dawn Lingua bought three yards of cloth to make some curtains. The cloth was on sale for $2.25 per yard. How much did Dawn pay for the cloth if the sales tax was 5%?

Answers

Answer:

Dawn paid $7.09.

Step-by-step explanation:

Dawn Lingua bought cloth to make curtains = 3 yards

Cost of the cloth = $2.25 per yard

Cost of 3 yard cloth = $2.25 × 3 = $6.75

Sales tax was = 5%

Sales tax on the total cost = 5% of 6.75

= (5/100) × 6.75 = 0.05 × 6.75 = $0.3375

Now we add sales tax to the total cost

= 6.75 + 0.3375 = $7.0875 rounded to $7.09

Dawn paid for the cloth with sales tax was $7.09

Ms. Frazier chooses two students to come to the board from a class of 12 boys and 8 girls.  What is the probability that she will select a girl student first and a boy student second?

Answers

Final answer:

The probability that Ms. Frazier selects a girl first and a boy second from her class is 24/95, calculated by multiplying the probability of selecting a girl (8/20) by the probability of selecting a boy thereafter (12/19).

Explanation:

To calculate the probability that Ms. Frazier will select a girl student first and a boy student second from her class of 12 boys and 8 girls, we need to use the concept of conditional probability because the selection of the second student depends on the first.

The total number of students is 12 boys + 8 girls = 20 students. The probability of selecting a girl first is the number of girls divided by the total number of students, which is 8/20. Once a girl is selected, there are now 19 students left. The probability of selecting a boy next is the number of boys left (which is still 12) divided by the new total, which is 12/19. The joint probability of both events happening in succession (selecting a girl then a boy) is found by multiplying the probabilities of the two individual events.

So, the probability of selecting a girl first and a boy second is (8/20) × (12/19) = 96/380. This simplifies to 24/95 when we divide both numerator and denominator by 4.

Therefore, Ms. Frazier has a probability of 24/95 to choose a girl first and a boy student second.

Final answer:

The probability of selecting a girl student first and a boy student second is approximately 0.2526.

Explanation:

To find the probability of selecting a girl student first and a boy student second, we need to calculate the probability of each event separately and then multiply them together.

Step 1: Probability of selecting a girl student first

Number of girls: 8Total number of students: 12 boys + 8 girls = 20Probability of selecting a girl student first = Number of girl students / Total number of students = 8/20 = 0.4

Step 2: Probability of selecting a boy student second

Number of boy students: 12Total number of students after selecting a girl student: 20 - 1 = 19Probability of selecting a boy student second = Number of boy students / Total number of students after selecting a girl student = 12/19 ≈ 0.6316

Step 3: Multiply the probabilities from Step 1 and Step 2:

Probability of selecting a girl student first and a boy student second = Probability of selecting a girl student first × Probability of selecting a boy student second = 0.4 × 0.6316 ≈ 0.2526

Greg, marcia, peter, jan, bobby and cindy go to a movie and sit next to each other in 6 adjacent seats in the front row of the theater. if marcia and jan will not sit next to each other, in how many ways different arrangements can the 6 people sit?

Answers

Find the total ways that people can be seated with no restrictions; 

6! ways but you know that marcia and jan will not sit together. 

Write out this, as: G, (M, J), B, P <-- M and J (Marcia and Jan are grouped together to find the ways they will be sat together, so we can subtract this away). 

In this combination, considering M and J as one, you have 5! ways. Then you see that M and J can switch position, so there would be added 2! ways. 

In total, possibility of J and M to sit together is 5!2! 

6!-5!2!
=720-240
= 480 possible ways of seating the friends so that Jan and Marcia are not together. 

Hope I helped :) 

A1 Plumbing Service charges $35 per hour plus a $25 travel charge for a service call. Good Guys Plumbing Repair charges $40 per hour for a service call with no travel charge. How many hours must a service call be for it to be better for you to call A1 Plumbing Service?

Answers

A1 = 35x+25

Good guys = 40x

35x+25 = 40x

subtract 3x x from each side

25 = 5x

 divide each side by 5

x = 25/5 = 5

 so 5 hours they would be the same cost,  anything over 5 hours and A1 would be better

so X>5 for A1 to be the better price

Sort the sequences to whether they are arithmetic, geometric, or neither
1) 98.3 , 94.1 , 89.9 , 85.7
2) 1 ,0 , -1 ,0
3) 1.75 , 3.5 , 7 ,14
4) -1 ,1 , -1 ,1
5) -12, -10.8, -9.6, -8.4

Answers

her answer is right but you just have to switch 4 and 5 around 4 is geometric while 5 is arithmetic

Final Answer:

Each sequence is tested for a common difference or ratio to determine if it is arithmetic or geometric. The sequences 98.3, 94.1, 89.9, 85.7 and -12, -10.8, -9.6, -8.4 are arithmetic, 1.75, 3.5, 7, 14 is geometric, and 1, 0, -1, 0 as well as -1, 1, -1, 1 are neither.

Explanation:

To determine if a sequence is arithmetic, geometric, or neither, we look for a common difference or ratio between consecutive terms.

For the sequence 98.3, 94.1, 89.9, 85.7, we subtract consecutive terms: 94.1 - 98.3 = -4.2, 89.9 - 94.1 = -4.2, 85.7 - 89.9 = -4.2. The common difference is -4.2, so this sequence is arithmetic.The sequence 1, 0, -1, 0 does not have a common difference or ratio, so it is neither arithmetic nor geometric.For 1.75, 3.5, 7, 14, the ratios are 3.5/1.75 = 2, 7/3.5 = 2, and 14/7 = 2. The common ratio is 2, so this sequence is geometric.The sequence -1, 1, -1, 1 alternates signs without a common difference or ratio, so it is neither.For the sequence -12, -10.8, -9.6, -8.4, the difference is -10.8 - (-12) = 1.2, -9.6 - (-10.8) = 1.2, -8.4 - (-9.6) = 1.2. The common difference is 1.2, making it an arithmetic sequence.

According to bmi, a woman who is 5 feet 6 inches tall and weighs 175 pounds is considered to be

Answers

 She is considered to be overwieght. The BMI is 28.2 Kg/ m2

A woman who is 5 feet 6 inches tall and weighs 175 pounds has a BMI of 28.2 and would be classified as overweight.

The Body Mass Index (BMI) is a tool commonly used to assess whether a person has a healthy weight relative to their height. To calculate BMI, you divide a person's weight in pounds by their height in inches squared and multiply by 703.

For a woman who is 5 feet 6 inches tall and weighs 175 pounds:

Height: 66 inchesWeight: 175 pounds

The calculation for BMI would be:
BMI = (175 / (66×66)) × 703  
BMI = 28.2

According to the BMI weight status categories:
BMI between 25 and 29.9 is considered overweight, and a BMI of 30 or higher is considered obese.

Therefore, a woman who is 5 feet 6 inches tall and weighs 175 pounds would be classified as overweight.

2x-1
Evaluate the algebraic expressions for the given values of the variable

Answers

An algebraic expression is an expression constructed from a number of constants and variables utilizing algebraic operations. These algebraic operations are addition, subtraction, multiplication, division, and exponentiation. A constant is constant, so its value is unchanged. A variable changes based on the value provided. In the provided example, 2x-1, there are two constants, "2" and "1", and one variable "x." The algebraic operations utilized are multiplication and subtraction. In order to evaluate the value of the algebraic expression, the given value for the variable must be substituted for the variable x, and then the algebraic operations executed to obtain the answer. For instance, if you were told that the value of x in this case was 2, then you would substitute the value 2 for x and perform the described operations. Remember to follow the order of operations when evaluating an algebraic expression! 2x-1 for x=2 2(2) - 1 4 - 1 3 is the answer. Remember, even though the multiplication operation is not explicitly stated, it is implied that a constant attached to a variable (termed a coefficient) is multiplied with the value of the variable.

A coin is weighted so that the probability of obtaining a head in a single toss is 0.3. if the coin is tossed 35 times, what is the probability of obtaining between 9 and 14 heads, exclusive.

Answers

The probability of obtaining between 9 and 14 heads , exclusive is 0.510

What is Probability?

The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible

The value of probability lies between 0 and 1

Given data ,

Let the probability of obtaining a head in a single toss be p = 0.3

Let the number of times the coin is tossed be n = 35

Now , the mean and the standard deviation is calculated by

Mean M = np

Substituting the values of n and p , we get

Mean M = 0.3 x 35

Mean M = 10.5

Now , the standard deviation S = √M ( 1- p )

Substituting the values in the equation , we get

Standard Deviation S = √10.5 ( 1 - 0.3 )

Standard Deviation S = √10.5 x 0.7

Standard Deviation S = 2.71

Now , the probability of obtaining between 9 and 14 heads , exclusive is represented as P ( 9 < x < 14 ) = P ( 8.5 < x < 14.5 )

And , the z - scores of 8.5 and 14.5 are

z ( 8.5 ) = ( x - M ) / S

            = ( 8.5 - 10.5 ) / 2.71

            = -0.3688

z ( 14.5 ) = ( x - M ) / S

            = ( 14.5 - 10.5 ) / 2.71

            = 1.1066

So , the probability of obtaining between 9 and 14 heads , exclusive is represented as P ( 9 < x < 14 ) = P ( -0.3688 < x < 1.1066 )

So , the equation can be written as

P ( 9 < x < 14 ) = P ( z < 1.1066 ) - P ( z < -0.3688 )

Using z-scores of probabilities, we have:

P ( 9 < x < 14 ) = 0.86577 - 0.3561

P ( 9 < x < 14 ) = 0.50967

P ( 9 < x < 14 ) = 0.510

Therefore , the value of  P ( 9 < x < 14 ) is 0.510

Hence,

The probability of obtaining between 9 and 14 heads , exclusive is 0.510

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Suzanne works 25 hours a week for four weeks at $9.50 per hour. how much does she earn at the end of four weeks?

Answers

She earns 25 x 9.5 = 237.5 x 4 = $950

Can you guys please help me with math? (Pt 2.)

(I've attached the picture)

Elian is placing a rectangle in the coordinate plane. He knows that the shorter side of the rectangle is half the length of the longer side. He places the longer side on the x-axis.

What coordinates should he assign to the top-left vertex of the rectangle?

Enter your answer in the boxes.

Answers

(0,a)

it didnt move left or right on the x-axis
it went up a units (since its half of 2a)

Let

x--------> the length side of the rectangle

y-------> the width side of a rectangle

we know that

[tex]y=\frac{1}{2}x[/tex] ------> equation A

[tex]x=2a\ units[/tex] ---------> given problem (see the graph)

substitute the value of x in the equation A

[tex]y=\frac{1}{2}2a=a\ units[/tex]

therefore

the answer is

the top-left vertex of the rectangle is the point [tex](0,a)[/tex]

Ann and betty shared the sum of money in the ratio 2:3, if ann received $60 less than betty, what was the total sum of money shared

Answers

180$ hope that helps!
Happy Halloween:)
One way to approach this would be to count the number of parts in the ratio: It's 2 + 3 = 5. Then Ann's share is 2/5 of the total amount. Betty's is 3/5. Your job is to determine (1) the amount of $ that they split up, and (2) what Betty receives as her share. Let x = the amount the girls split up
I think that would be the answer.
Hope this helped ☺

if x is 50 then what is x4+44+3.5

Answers

The answer is:  " 10,047.5 " .
_______________________________
Explanation:
________________________________
Given:  " x⁴ + 44 + 3.5 " ;  and given:  "x = 50" ;

we can plug in "50" for "x" ; and solve:
________________________________________
       10⁴ + 44 + 3.5 ;

       =  10,000 + 44 + 3.5 ;

       =   10,047.5
________________________________________
 

Mateo is draining a pool at a rate of 1/8 of a gallon every 1/2 hour. If he continues to drain the pool , how much waters will be drained in 1 hour?

Answers

If he drains 1/8 of a gallon in 1/2, the amount he will drain in one hour is twice as much as 1/8.

Mateo will drain 2/8 (simplified: 1/4) of a gallon in one hour.
Just multiply numerator and denominator of the given rate by 2:

2(1/8) gallon        1/4 gallon
-----------------  =  ---------------- = 1/4 gallon per hour
2(1/2) hour)              1 hour

joanna bought 1 1/2 pounds of apples, 3/4 pounds of strawberries, 1/2 pound of grapes, 1 3/4 pounds of oranges, and 1 1/4 pounds of pears. How many pounds of fruit Joanna bought in all?

Answers

he bought 5 3/4 pounds of fruit
lets convert all the fractions to decimals and then add. :)
apples- 1.5
strawberries- 0.75
grapes- 0.50
oranges- 1.75
pears- 1.25

add all these together and you get 5.75 pounds of fruit in total
if you desire to have your answer as a fraction the fraction for 5.75 would be 5 75/100 simplified to 5 3/4 

Your answer is 5.75 or 5 3/4

Ingrid is making a quilt using squares that measure 5in on each side. What is the length of a diagonal of one of the quilt squares?

Answers

5 inches because all lines/sides on a square are equivalent.
hope this helps! :)

Answer:

8.7 Maybe.

Step-by-step explanation:

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